684094265 has 4 divisors (see below), whose sum is σ = 820913124. Its totient is φ = 547275408.

The previous prime is 684094261. The next prime is 684094277. The reversal of 684094265 is 562490486.

684094265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114746944 + 569347321 = 10712^2 + 23861^2 .

It is a cyclic number.

It is not a de Polignac number, because 684094265 - 2² = 684094261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684094261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68409422 + ... + 68409431.

It is an arithmetic number, because the mean of its divisors is an integer number (205228281).

Almost surely, 2^684094265 is an apocalyptic number.

It is an amenable number.

684094265 is a deficient number, since it is larger than the sum of its proper divisors (136818859).

684094265 is a wasteful number, since it uses less digits than its factorization.

684094265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136818858.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 684094265 is about 26155.1957553370. The cubic root of 684094265 is about 881.1272850939.

The spelling of 684094265 in words is "six hundred eighty-four million, ninety-four thousand, two hundred sixty-five".